CN107331102A - Intelligent concentration suction-type cable fire pole early warning device and method - Google Patents
Intelligent concentration suction-type cable fire pole early warning device and method Download PDFInfo
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- CN107331102A CN107331102A CN201710765198.6A CN201710765198A CN107331102A CN 107331102 A CN107331102 A CN 107331102A CN 201710765198 A CN201710765198 A CN 201710765198A CN 107331102 A CN107331102 A CN 107331102A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
- G08B29/188—Data fusion; cooperative systems, e.g. voting among different detectors
Abstract
The invention discloses the intelligent concentration suction-type cable fire pole early warning device of one kind, including industrial control host, detection integrated system and wireless communication module, fire information is sent to industrial control host in time, industrial control host carries out fusion treatment to data, and fire information is sent to using wireless communication module the host computer of night shift room in time；Detection integrated system includes detection and integrates main frame and be connected to active inspiration formula gas detector system, combined type fire detecting system and cable thermometric detection system that detection integrates main frame.The invention also discloses the method that early warning is carried out using said apparatus.The present invention has advantages below：Pole early warning is realized by monitoring feature before ignition of cable；Arranged using active inspiration formula detector and according to site environment, the complicated place of reply can not be had the shortcomings that by overcoming conventional probes, it is to avoid dust etc. causes false alarm；To characteristic information collection and uniform disposal, sensor utilization is improved, cost is reduced.
Description
Technical field
The present invention relates to fire alarm technology, a kind of cable fire early warning technology is more particularly to.
Background technology
Cable is widely used in generating electricity, transmitted electricity, distribution links, because insulation ag(e)ing, overload, loose contact, external force are broken
Bad the problems such as, caused cable fire accounted for the 70~80% of transformer fire.The loss that more than 70% cable fire is caused is very
Seriously, society's negative effect is very big, has had a strong impact on operation safety and the people life property safety of power system.2016 6
The moon 18, Shaanxi Power 110kV Wei Qu become 35kV outlet cable ditches and caught fire, 24.3 ten thousand kilowatts of breakdown loss load, customer interrupted
8.65 ten thousand families.Fire occurs on October 12nd, 2016, Tokyo, Japan SaitamaYu counties Xin Zuo cities buried cable, causes central Tokyo
Massive blackout, up to 580,000 families are impacted, cause traffic turbulence and vehicle collision accident.
Intelligent fire alarm technology also increasingly shows its importance as one of fire prevention means.Fire is certainly
Dynamic alarm and coordinated signals equipment, are developed to bus system, digital display circuit from multiple-way system, simulation system, are by detector alarm
Main plain edition system develops to the intelligent system based on being calculated with associative mode, detector for fire alarm system also from single type to
The intelligent direction of combined type is developed.Traditional fire monitoring is generally using threshold decision and trend-monitoring algorithm to single sensor
Output signal is handled, if same method to be applied to the system of polynary parameter, it may appear that wrong report or failing to report phenomenon.Due to
Cable typically all integrates phenomenon in burning with smog, flare, temperature rise, stray radiation and unusual odor etc., using many
Kind of sensor features, using scope, precision to provide local phenomenon and data, then integrated and make accurate judgement,
Accurate data can be provided for policymaker.It is not original list using the fire protection alarm system of multisensor Data Fusion technology
The simple combination of one parameter fire detector, but implement multisensor synchronizing detection, should according to different types of fire parameter
With intelligent algorithm, the fire parameter of multisensor is merged, judges that fire hazard whether there is.This method overcome with
Sentence the limitation of single sensor measurement, be effectively improved reliability, reduction rate of false alarm.
Cable laying place is unmanned place mostly, and fire is difficult to be found in time by staff after occurring, to ensure safety,
Fire alarm system is widely used already in this kind of place.The fire monitoring side that current cable passage is used mostly
Method mainly has：Line-type heat detector, thermistor-type temp measuring system, point-type smoke fire detector, point-type temperature-sensitive
Formula fire detector and fire image warning system.
1. line-type heat detector
It is adapted to the protection of continuous type elongated combustible object (such as cable), but good contact must be kept with protected object body,
Otherwise its Effect on Detecting will be substantially reduced；Due to the protection of no screen layer, this line type fire detector is highly prone to electromagnetism and done
Disturb.System is only capable of disposable, it is impossible to measure the actual temperature value of cable；Because number of cables is more, system is installed and safeguarded
Work not enough facilitates, and equipment is fragile；Fault forecast can not be carried out.
2. thermistor-type temp measuring system
Because each thermistor is required for independent wiring, wiring is complicated and thermistor is fragile, therefore maintenance is big；
Sensor does not possess self-checking function, it is necessary to often examine.
3. point-type smoke fire detector
It is divided into photoelectric type smoke fire detector and ionic smoke fire detector according to handling characteristics.There must be smog
Particle enters light and the ionized field that detector internal structure goes out, therefore the protection domain of this detector is restricted, and is led to
It is often tens square metres；Any particulate may all cause the action of smoke fire detector.In addition to fire hazard aerosol fog particulate, there is ash
Dirt particulate, water vapour, volatile organic matter, or even small insect.
4. point-type heat fire detector
The necessary Direct Contact Heating air of heat fire detector or high-temperature flue gas, otherwise can be because of gas heat-exchange capacity
It is relatively weak, it is difficult to act heat detector.Temperature anomaly rise occurs over just fire because caused by occurring fire in environment
Calamity position and its neighbouring surrounding, therefore the protected area of this detector is limited, and typically smaller than feel the guarantor of cigarette type detector
Mask is accumulated；Unless directly come in contact with heated air and fire smoke, the otherwise drastically change of temperature is typically always caused
The delay of the fire alarm of heat fire detector.
5. fire image warning system
Common color video camera and infrared camera are combined together, to the image in protection zone, temperature is carried out
Monitoring, and field condition is judged into the generation of fire by being compared with combustion model prefabricated inside main frame.Technique
Application the problem of although solve large space interior fires detector detection height, and the it can be found that accurate position of fire
Put, but in actual applications, infrared photography is utilized because the generation that system observes visible smoke and naked light with common camera is added
Hyperpyrexia produced by machine observation burning is as alarm criteria, to judge the generation of fire.Using in fire early period of origination, both do not had
Visible smoke, naked light, the stage also produced without substantial amounts of heat, it is impossible to which reliable alarm is provided.
It is several conventional cable fire monitoring methods above.Place is laid cable is actual, humidity, dust, is divulged information not
Good and electromagnetic interference is the common problem of generally existing, and moist and dust can enter as the soot dust granule in fire hazard aerosol fog
Enter light or ionized field that smoke fire detector internal structure goes out, so as to cause detector action, send false alarm.It is moist
Sensitive component surfaces even can be deposited on dust, cause smoke detector can not normal work when serious.Improper ventilation can enter
One step hinders the heat exchange between fire smoke or heated air and surrounding air, and hinders their flowing, this situation
The fire alarm of heat fire detector is set more to be delayed；Moist and deposition of the dust on temperature-sensing element, also influences whether sense
The sensitivity of warm element.The deposition of dust will influence the sensitivity of line-type heat detector, and then have can for electromagnetic interference
It can cause this detector can not normal work.Temperature signal is relative simultaneously is in the signal sent during the fire development phase, information
It is more delayed, it is impossible to realize early warning.In addition, the communication of fire detection alarm system and data are by using live cloth at present
What the mode of line was transmitted, not only space-consuming is big for this mode, and network layout is intricate, adds detection alarm
The complexity and cost of device.
In addition, in the market also has some air suction type fire detecting arrangements, such as Publication No. CN202134077U, it is entitled
The patent of " a kind of computer room pole incipient fire grade early warning system based on intelligent inference ", intelligent inference is based on it discloses one kind
Computer room pole incipient fire grade early warning system, including aspirated smoke sensor, A/D conversion chips, temperature sensor,
Central processing module MCU, house dog and 3G module, the detection disclosed in the patent be based on smog air-breathing detection, it is this by
In for smog, detection parameter is mainly aerosol particle (smoke particle), is influenceed by dust etc. greatly, so being only used for computer room
Deng clean place, it is easy in places such as conduit lines because dust causes false alarm, in addition, it is also fire that detection parameter, which is smog,
The signal of gas is lagged behind in calamity signal.
In addition, the Publication No. CN 105185022A of present applicant application, entitled " based on multisensor letter
In the patent application of the transformer station's fire detecting system and detection information fusion method of breath fusion ", a kind of multisensor is disclosed
Information fusion carries out the system of detection and the information convergence analysis method based on BP neural network algorithm, so as to realize multiple
The advantage that multiple sensors cooperate together in detector is closed, the efficiency and accuracy of cable fire early warning is greatly improved.
But, the gas parameter after the characteristic gas part in the patent application is caught fire using combustible in fire process is detected in addition
Device is using conventional passive detection mode, it is impossible to realize the active forewarning before catching fire.
Another Publication No. CN 106887107 A of the applicant's application, it is entitled " a kind of for cable fire
In the patent application of gas recombination detector ", a kind of gas recombination detector for cable fire is disclosed, can be to fire
The special gas that initial stage produces are sensitive, and so as to reach early alert, but its structure design is only applicable to not be very heavy
The occasion wanted, because its detection to gas is passive type, due to the influence such as extraneous ventilation, it is impossible to reach accurately extremely early
The alarm of phase.
The content of the invention
The technical problems to be solved by the invention are the provision of a kind of intelligent concentration suction-type cable fire pole early stage
Prior-warning device, can be used for environment more severe place, it is to avoid false alarm caused by dust, ventilation etc. and late alarm, realize
Cable fire pole early stage, comprehensive early warning.
The present invention is to solve above-mentioned technical problem by the following technical programs：A kind of intelligent concentration suction-type cable fire
Calamity pole early warning device, including industrial control host, detection integrated system and wireless communication module, industrial control host passes through wireless
The detection of communication module and each detection integrated system integrates main frame and is connected, and realizes information interconnection and intercommunication, and by gained
To fire information be sent to industrial control host in time, industrial control host is using the information convergence analysis of BP neural network algorithm to many
The data that detection integrates host synchronization detection carry out fusion treatment, and industrial control host causes system institute using wireless communication module
Obtained fire information is sent to the host computer of night shift room in time；
Wherein described detection integrated system includes detection and integrates main frame and be connected to detection synthesis master
Active inspiration formula gas detector system, combined type fire detecting system and the cable thermometric detection system of machine, the channel radio
Module is interrogated, mounting arrangements integrate main frame, air suction type gas detector system, combined type fire detecting system and electricity in detection
In cable thermometric detection system.
As the technical scheme of optimization, the air suction type gas detector system, including multiple sampling modules, pumping list
Member, analysis module, sampling module are connected to analysis module by pumping cells, and sampling module coordinates pumping cells to gather on one's own initiative
Air sample in search coverage, analysis module is used for analysing whether there is fire.
As the technical scheme further optimized, each sampling module, including successively by multiple filters, multiple electromagnetism
Valve, pipeline decomposer, triple valve, the pumping cells inlet ductwork of the first threeway connection composition, in addition to successively by first flow
Meter, the 3rd threeway, the pumping cells export pipeline of needle-valve connection composition, the magnetic valve are identical with number of filters and one a pair
Should.
As the technical scheme further optimized, each sampling module also includes the nitrogen cylinder, described by being sequentially connected
Triple valve, the pipeline decomposer, the multiple magnetic valve, the scavenging pipeline of the multiple filter composition.
As the technical scheme further optimized, the pumping cells, including first and second aspiration pump, the second threeway, condensation
Device, peristaltic pump, first and second pumping pump inlet connect the first threeway of gas unit inlet pipeline, first and second pumping pump discharge respectively
The second threeway is connected respectively, and condenser inlet is connected with the second threeway, the of condensator outlet connection pumping cells export pipeline
Flow meters, pumping cells are delivered to analysis module by the air sample of sampling module for extraction and analyzed.
As the technical scheme further optimized, the analysis module includes wireless communication module, successively by second flow
Meter, CxHy、CO、SOx、NOx、CO2、HCl、NH3And H2The analysis of pipeline of sensor composition, in addition to gone out by sampling module needle-valve
Mouth, the constant temperature and humidity of the first thermometer, the first hygrometer composition confirm pipeline, and for collection analysis module erecting bed
The second temperature meter and the second hygrometer of data.
As the technical scheme of optimization, combined type fire detecting system includes many combination type fire detectors, Duo Gewu
Line communication module, multiple wireless communication modules are arranged in corresponding combination type fire detector；
Cable thermometric detection system is passed by multiple wireless communication modules, many cable thermometric transmitters and multiple cable thermometrics
Sensor connection composition, multiple wireless communication modules are arranged in many cable thermometric transmitters, and its quantity is corresponded, Duo Ge electricity
Cable temperature transducer is divided into some groups, and every cable thermometric transmitter connects one group of cable temperature transducer.
Invention additionally discloses a kind of extremely early using the intelligent concentration suction-type cable fire as described in above-mentioned either a program
The method that phase prior-warning device carries out pole early warning, comprises the steps：
Step 1, tested first by ftir Analysis-mass spectrometry of typical cable, obtain cable pyrolysis parameters of rock and early stage
Feature, and according to the powered combustion test of cable, the early sign of the powered burning of cable is obtained, combine correlated characteristic, establish base
In the characteristic gas of power cable fire pole early detection, according to features described above gas and its BP nerve nets of content trainer
Network algorithm；
Step 2, above-mentioned intelligent concentration suction-type cable fire pole early warning device is arranged；
Step 3, opening device carries out fire pole early warning, during operation, passes through the sampling being distributed in protected area
Sample tap in module actively gathers air sample, and is delivered to by pumping cells in analysis module, then, passes through wireless telecommunications
Module is sent to detection and integrates main frame, and detection integrates main frame, combined type fire detecting system, cable thermometric detection system
The data of system are sent to industrial control host by wireless communication module, with reference to air suction type gas detector system, combined type fire
Detection system, cable thermometric detection system data, with the information fusion technology based on neuro-fuzzy algorithm to synchronizing detection
Multiple information rationally dominate with using, and the complementation of various sensors has been combined with redundancy according to certain Optimality Criteria
Come, handled and integrated, provide accurate signal prompt, and according to the pre-determined alarm setting grade of sensitivity of user
Send alarm of fire.
As the technical scheme of optimization, the principle arranged in the step 2 includes：
In cable tunnel and the unapproachable place of personnel, the sample tap of device is arranged on to the position being conveniently accessible to, only
Sampling pipe network is arranged in those and is difficult to region immediately；
Air-flow changes than larger place, and sample tap is arranged at return air grid or in equipment enclosure；
In the space of tall and big opening, by sample tap be arranged in smog drift by way of place.
It is further comprising the steps of as the technical scheme of optimization：
Step 4, when the plant running time reaches that setting purge time or pipeline meet blocking, detection integrates main frame certainly
The dynamic scavenging pipeline started in active inspiration formula gas detector system, blows down the particle at sample tap or pipeline blockage.
The present invention has advantages below compared with prior art：
The detection feature used is integrated and extracted by the powered burning of power cable and physico-chemical analysis, is ignition of cable
Feature before, so pole early warning can be realized by being monitored to these parameters.
It is arranged, is overcome often using the gas detector of active inspiration formula, and according to site environment and air-flow change
Advise detector can not the effective changeable and complicated place of probe gas stream shortcoming, while can be used for environment more severe field
Institute, it is to avoid dust etc. causes false alarm.
Using the information convergence analysis based on BP neural network algorithm multiple sensors are synchronized with multiple letters of detection
Breath carries out fusion treatment (transformer station fire detecting system and detection of this method patent applied for based on multi-sensor information fusion
Information fusion method, publication No. is CN 105185022A), so as to realize that multiple sensors cooperate with work together in complex detector
The advantage of work, greatly improves the efficiency and accuracy of cable fire early warning.
Meanwhile, on the one hand the ZigBee wireless communication technologys of use can cause the fire information obtained by device to pass in time
Deliver to night shift room, related personnel.On the other hand, can be by cordless communication network, by other complex detectors or other online prisons
Signal access system is surveyed, further fusion treatment or the function of uniformly reporting and submitting is reached, augmentation data server push technology, in real time
Monitoring field fire parameter and dangerous situation, Realtime Alerts, data query and processing function, realize cable fire pole in early days, entirely
Orientation early warning.
Brief description of the drawings
Fig. 1 is intelligent concentration suction-type cable fire pole early warning device architecture figure；
Fig. 2 is air suction type gas detector system gas piping diagram.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementations
Example.
Refer to shown in Fig. 1, the intelligent concentration suction-type cable fire pole early warning device of the present invention includes industry control master
Machine, detection integrated system and the wireless communication module based on 2.4GHz, wherein the industrial control host is online built with fire
Monitoring system data collection and analysis software, it is integrated by the detection of wireless communication module and each detection integrated system
Main frame is connected, and realizes information interconnection and intercommunication, and resulting fire information is sent into industrial control host in time, and industrial control host is used
The data that the information convergence analysis of BP neural network algorithm integrates host synchronization detection to many detections carry out fusion treatment,
Industrial control host causes the fire information obtained by system to be sent to the host computer of night shift room in time using wireless communication module, so that
Relevant staff can monitoring field fire parameter and dangerous situation, Realtime Alerts, data query and processing function in real time, it is real
Existing cable fire pole early stage, comprehensive early warning.
The detection integrated system, including detection integrate main frame and are connected to detection and integrate main frame
In air suction type gas detector system, combined type fire detecting system and cable thermometric detection system, the present embodiment, composite fire
Calamity detection system integrates main frame, air suction type gas detector system and the detection of cable thermometric by one detection of wireless access
One detection of system access integrates main frame, and this is in order to a certain degree come out the Dynamic data exchange of wireless access, mainly
For the consideration of information security.The detection integrated system is responsible for gathering the related data in protected area.The nothing
Line communication module, mounting arrangements integrate main frame, air suction type gas detector system, combined type fire detecting system in detection
And in cable thermometric detection system, specifically, ZM2410P2 can be selected, the wireless communication module embeds serial ports transparent transmission
(point multiple spot and point-to-multipoint) communications protocol, need to only send AT instructions can easily realize wireless data sending and receiving, using ASCII character
Radio communication is realized as transmitting data stream coded format, and supports aerial upgrade firmware or configuration far module information, certainly,
Other available wireless communication modules can also be selected.Wireless communication module realizes data transfer by ZigBee-network.
Please refer to shown in Fig. 2, the air suction type gas detector system, including multiple sampling modules, pumping cells,
Analysis module, sampling module is connected to analysis module by pumping cells, and sampling module coordinates pumping cells to gather spy on one's own initiative
The air sample surveyed in region, analysis module is used for analysing whether there is fire, so as to send fire alarm.
Each sampling module, including successively by multiple filters, multiple magnetic valves, pipeline decomposer, triple valve, threeway 1
The pumping cells inlet ductwork of composition is connected, in addition to the pumping cells being made up of successively flowmeter 1, threeway 3, needle-valve connection go out
Mouth pipeline, in addition to by the nitrogen cylinder being sequentially connected, the triple valve, the pipeline decomposer, the multiple magnetic valve, institute
The scavenging pipeline of multiple filter compositions is stated, the magnetic valve is identical with number of filters and corresponds.The filter
Setting can prevent gas sensor to be contaminated stopping outside containing more particle, dust etc. in fire premature gas
And influence its normal service behaviour.
The pumping cells, including aspiration pump 1-2, threeway 2, condenser, peristaltic pump, aspiration pump 1-2 imports are connected respectively
Threeway 1, the aspiration pump 1-2 outlets of gas unit inlet pipeline connect threeway 2 respectively, and condenser inlet is connected with threeway 2, condenser
The flowmeter 1 of outlet connection pumping cells export pipeline, pumping cells are used to extract to be delivered to by the air sample of sampling module
Analysis module is analyzed, and the condenser is used to ensure that air sample constant temperature and humidity enters analysis module, and peristaltic pump pumps are cold
The water that condenser work is produced.
The analysis module includes wireless communication module, successively by flowmeter 2, CxHy、CO、SOx、NOx、CO2、HCl、NH3
And H2The analysis of pipeline of sensor composition, in addition to the constant temperature being made up of the outlet of sampling module needle-valve, thermometer 1, hygrometer 1
Constant humidity confirm pipeline, and the data for collection analysis module erecting bed thermometer 2 and hygrometer 2.
Combined type fire detecting system includes many combination type fire detectors, multiple wireless communication modules, multiple wireless
Communication module is arranged in corresponding combination type fire detector, and its quantity is corresponded.
Cable thermometric detection system is passed by multiple wireless communication modules, many cable thermometric transmitters and multiple cable thermometrics
Sensor connection composition, multiple wireless communication modules are arranged in many cable thermometric transmitters, and its quantity is corresponded, Duo Ge electricity
Cable temperature transducer is divided into some groups, and every cable thermometric transmitter connects one group of cable temperature transducer.
The pipeline of above-mentioned gas transmission selects a diameter of 6mm polyfluortetraethylene pipe or stainless steel tube, above-mentioned wireless telecommunications
Module integrates main frame by ZigBee cordless communication networks and detection and is connected, and carries out information interconnection and intercommunication.
Using the above-mentioned intelligent method bag for concentrating suction-type cable fire pole early warning device to carry out pole early warning
Include following step：
Step 1, tested first by ftir Analysis-mass spectrometry of typical cable, obtain cable pyrolysis parameters of rock and early stage
Feature, and according to the powered combustion test of cable, the early sign of the powered burning of cable is obtained, combine correlated characteristic, establish base
In the characteristic gas of power cable fire pole early detection, according to features described above gas and its BP nerve nets of content trainer
Network algorithm；
Step 2, above-mentioned intelligent concentration suction-type cable fire pole early warning device is arranged, in cable tunnel and personnel
Unapproachable place, is difficult to approach by protection zone, and needs break-off when being safeguarded to existing fire detecting system, from
And no small trouble and potential risks are brought to business, the sample tap of device can be arranged on to the position being conveniently accessible to, only
Sampling pipe network is arranged in those and is difficult to region immediately, so that easy maintenance is easy；
Smoke dilution can be hindered smog to rise so that smog is difficult to be detected by air-flow change than larger place, air-flow
Arrive, smog may also can by pipeline, interior canal, either vacuum area remains in a standstill or in high smallpox cloud bar formed below, make its difficult
To be detected, sample tap is arranged at return air grid or in equipment enclosure, just can be with when air-flow takes smog here to
It is detected；
In the space of tall and big opening, sample tap can be arranged in smog drift institute by way of place be often in day
In a certain distance of flower lower section；
Step 3, opening device carries out fire pole early warning, during operation, passes through the sampling being distributed in protected area
Sample tap in module actively gathers air sample, and is delivered to by pumping cells in analysis module, then, with wireless telecommunications mould
Block is sent to detection by ZigBee cordless communication networks and integrates main frame, carries out information interconnection and intercommunication, and detection is integrated
Main frame, combined type fire detecting system, the data of cable thermometric detection system are sent to industry control master by wireless communication module
Data collection and analysis software cycle (cycle is set to 5s) poll data acquisition process in machine, industrial control host, completes to adopt
After collection, information is pre-processed, checks whether data are complete, correct.There is no data unusual fluctuation such as, then deposited with 5 minutes for the cycle
Historical data is stored up, if any data unusual fluctuation, then into specially treated flow, i.e., according to the physical change rule of each data, is rejected not
Rational data, it is ensured that the preferable quality of data；According to the inner link and rule between each data, the mutual school of data is carried out
Test, prevent that, because bad data causes malfunction or tripping, save historical data data with more becoming more meticulous.Above-mentioned data handling procedure can
To use existing data processing method.Industrial control host combination air suction type gas detector system, combined type fire detecting system,
Cable thermometric detection system data, with multiple letters of the information fusion technology based on fuzzy neuron (BP) algorithm to synchronizing detection
Breath rationally dominate with using, and the complementation of various sensors is combined with redundancy according to certain Optimality Criteria, carried out
Processing and comprehensive, not only considers parameter value, while consider the rate of change of detection signal, thus the inner link of awareness information and
Rule, rejects wrong and useless information, retains correct and useful information, realizes the optimization of information, perfect, accurate reflection
Environmental characteristic, so as to realize the advantage cooperated together, thus provides accurate signal prompt, and true in advance according to user
Fixed alarm setting grade of sensitivity sends alarm of fire.It can provide and timely alarm in the cable thermal decomposition stage, carry significantly
High detection and early warning to cable fire pole early stage (overheat, smoulder, low heat-emissive and without visible smog generation phase), so
Time of fire alarming is done sth. in advance into more than a few hours than conventional detection equipment, can before fire is formed pole early detection risk hidden danger, will
Fire risk probability is minimized.On the one hand industrial control host can cause system using wireless communication module by ZigBee-network
Resulting fire information is sent to the host computer of night shift room in time, on the other hand, can be answered other by cordless communication network
Detector or other line monitor signal access systems are closed, further fusion treatment or the function of uniformly reporting and submitting are reached, wherein adopting
Information fusion technology based on fuzzy neuron (BP) algorithm is existing data processing technique；
Step 4, when the plant running time reaches that setting purge time or pipeline meet blocking, detection integrates main frame certainly
The triple valve of dynamic regulation sampling module adjusts nitrogen cylinder (99.999% nitrogen to purge mode position (1-2 directions lead to)
Gas) outlet pressure is 0.6MPa, multiple magnetic valves automatically open up progress and purged and timing, and setting purge time (10 minutes) reaches
Afterwards, system closes multiple magnetic valves automatically, and regulation nitrogen cylinder outlet pressure is 0MPa, and triple valve resumes operation mode position
(1-3 directions lead to).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of intelligent concentration suction-type cable fire pole early warning device, it is characterised in that including industrial control host, fire
Integrated system and wireless communication module are detected, industrial control host passes through wireless communication module and the fire of each detection integrated system
The comprehensive main frame connection of detection, realizes information interconnection and intercommunication, and resulting fire information is sent into industrial control host, industry control in time
The data that main frame integrates host synchronization detection to many detections using the information convergence analysis of BP neural network algorithm are carried out
Fusion treatment, industrial control host causes the fire information obtained by system to be sent to the upper of night shift room in time using wireless communication module
Position machine；
Wherein described detection integrated system includes detection and integrates main frame and be connected to detection synthesis main frame
Active inspiration formula gas detector system, combined type fire detecting system and cable thermometric detection system, the wireless telecommunications mould
Block, mounting arrangements integrate main frame, air suction type gas detector system, combined type fire detecting system and cable in detection and surveyed
In warm detection system.
2. intelligent concentration suction-type cable fire pole early warning device according to claim 1, it is characterised in that institute
Air suction type gas detector system, including multiple sampling modules, pumping cells, analysis module are stated, sampling module is single by being evacuated
Member is connected to analysis module, and sampling module coordinates pumping cells to gather the air sample in search coverage, analysis module on one's own initiative
For analysing whether to have fire.
3. intelligent concentration suction-type cable fire pole early warning device according to claim 2, it is characterised in that every
Individual sampling module, including successively by multiple filters, multiple magnetic valves, pipeline decomposer, triple valve, the first threeway connection constitute
Pumping cells inlet ductwork, in addition to exported successively by first flowmeter, the 3rd threeway, the pumping cells that constitute of needle-valve connection
Pipeline, the magnetic valve is identical with number of filters and corresponds.
4. intelligent concentration suction-type cable fire pole early warning device according to claim 3, it is characterised in that every
Individual sampling module also includes by the nitrogen cylinder being sequentially connected, the triple valve, the pipeline decomposer, the multiple electromagnetism
The scavenging pipeline of valve, the multiple filter composition.
5. intelligent concentration suction-type cable fire pole early warning device according to claim 3, it is characterised in that institute
Pumping cells, including first and second aspiration pump, the second threeway, condenser, peristaltic pump are stated, first and second pumping pump inlet is connected respectively
First threeway of gas unit inlet pipeline, first and second pumping pump discharge connect the second threeway, condenser inlet and the two or three respectively
Lead to and connect, condensator outlet connects the first flowmeter of pumping cells export pipeline, pumping cells, which are used to extract, passes through sampling mold
The air sample of block is delivered to analysis module and analyzed.
6. intelligent concentration suction-type cable fire pole early warning device according to claim 5, it is characterised in that institute
Analysis module is stated including wireless communication module, successively by second flowmeter, CxHy、CO、SOx、NOx、CO2, HCl, NH3 and H2S is passed
The analysis of pipeline of sensor composition, in addition to the constant temperature being made up of the outlet of sampling module needle-valve, the first thermometer, the first hygrometer are permanent
Based on wet confirmation pipeline, and the second temperature of data by collection analysis module erecting bed and the second hygrometer.
7. intelligent concentration suction-type cable fire pole early warning device according to claim 1, it is characterised in that multiple
Box-like fire detecting system includes many combination type fire detectors, multiple wireless communication modules, multiple wireless communication module peaces
In corresponding combination type fire detector；
Cable thermometric detection system is by multiple wireless communication modules, many cable thermometric transmitters and multiple cable temperature transducers
Connection composition, multiple wireless communication modules are arranged in many cable thermometric transmitters, and its quantity is corresponded, and multiple cables are surveyed
Temperature sensor is divided into some groups, and every cable thermometric transmitter connects one group of cable temperature transducer.
8. a kind of intelligent concentration suction-type cable fire pole early warning dress using as described in any one of claim 1 to 7
Put the method for carrying out pole early warning, it is characterised in that comprise the steps：
Step 1, tested first by ftir Analysis-mass spectrometry of typical cable, obtain cable pyrolysis parameters of rock and early stage is special
Levy, and according to the powered combustion test of cable, obtain the early sign of the powered burning of cable, combine correlated characteristic, be established based on
The characteristic gas of power cable fire pole early detection, according to the BP neural network of features described above gas and its content trainer
Algorithm；
Step 2, above-mentioned intelligent concentration suction-type cable fire pole early warning device is arranged；
Step 3, opening device carries out fire pole early warning, during operation, passes through the sampling module being distributed in protected area
On sample tap actively gather air sample, and delivered to by pumping cells in analysis module, then, pass through wireless communication module
It is sent to detection and integrates main frame, detection integrates main frame, combined type fire detecting system, cable thermometric detection system
Data are sent to industrial control host by wireless communication module, with reference to air suction type gas detector system, combined type detection
System, cable thermometric detection system data, with the information fusion technology based on neuro-fuzzy algorithm to the multiple of synchronizing detection
Information rationally dominate with using, and the complementation of various sensors and redundancy are combined according to Optimality Criteria, located
Manage and comprehensive, provide accurate signal prompt, and fire is sent according to the pre-determined alarm setting grade of sensitivity of user
Alarm.
9. according to claim 8 carry out pole early stage using intelligent concentration suction-type cable fire pole early warning device
The method of early warning, it is characterised in that the principle arranged in the step 2 includes：
In cable tunnel and the unapproachable place of personnel, the sample tap of device is arranged on to the position being conveniently accessible to, only handle is adopted
Sample pipe net arrangement is difficult to region immediately at those；
Air-flow changes than larger place, and sample tap is arranged at return air grid or in equipment enclosure；
In the space of tall and big opening, by sample tap be arranged in smog drift by way of place.
10. it is according to claim 8 extremely early using intelligent concentration suction-type cable fire pole early warning device progress
The method of phase early warning, it is characterised in that further comprising the steps of：
Step 4, when the plant running time reaches that setting purge time or pipeline meet blocking, detection integrates main frame and opened automatically
Scavenging pipeline in dynamic active inspiration formula gas detector system, blows down the particle at sample tap or pipeline blockage.
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| CN201710765198.6A CN107331102A (en) | 2017-08-30 | 2017-08-30 | Intelligent concentration suction-type cable fire pole early warning device and method |
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| CN110624198A (en) * | 2019-10-18 | 2019-12-31 | 国网河南省电力公司濮阳供电公司 | Fire extinguishing system for urban switching station |
| CN110726680A (en) * | 2019-09-27 | 2020-01-24 | 国网山西省电力公司太原供电公司 | Fire early warning method for cable well |
| CN112535831A (en) * | 2020-12-22 | 2021-03-23 | 国家电网有限公司 | Unattended fire prevention monitoring and fire fighting system of transformer substation |
| CN113838261A (en) * | 2021-09-28 | 2021-12-24 | 中车大同电力机车有限公司 | Automatic fire monitoring system and method for electric locomotive |
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